<!DOCTYPE html>
<html>
  <head>
    <title>SMVVM1</title>
  </head>
  <body>
    <div id="app" class="app" style="color: red;">
      <div :class="node {{a}}" style="height: 100px"> 
	      {{a}} 
      </div>
    </div>
    <script type="module" src="./main.js"></script>
</body>
</html>
